@CHARSET "UTF-8";
.back_login{position:relative;margin:0px auto;width:1100px;height:30px;border:1px solid red;}
.back_logo{position:relative;margin:0px auto;width:1100px;height:120px;border:1px solid red;}
.back_index{position:relative;margin:0px auto;width:1100px;margin-top:10px;border:1px solid red;}

#dianmianxinxi_1{position:relative;margin:0px auto;width:1000px;margin-left:-8px;margin-top:-8px;}
#dianmianxinxi_1 #form1 {padding-top:20px;padding-left:20px}
#dianmianxinxi_1 #form1 #button1{width:70px;height:30px;margin-top:20px;margin-right:20px;}
#dianmianxinxi #iframe{width:1100px;height:200px;margin-left:-20px;}
<!-- -->
#teshushuoming #iframe{width:1100px;height:200px;margin-left:-20px;}
#teshushuoming_1 #form1 {padding-left:20px}
#teshushuoming_1 #form1 input{margin-top:10px;}
#teshushuoming_1 #form1 #button1{width:70px;height:30px;margin-top:20px;margin-right:20px;}
<!-- -->
#yonghuxinxi #iframe{width:1100px;height:220px;margin-left:-20px;}
#yonghuxinxi_1 #form1 {padding-left:20px}
#yonghuxinxi_1 #form1 input{margin-top:10px;}
#yonghuxinxi_1 #form1 #button1{width:70px;height:30px;margin-top:20px;margin-right:20px;}
#yonghuxinxi_1 h3{padding-left:20px}
<!-- -->
#caidanxinxi #iframe{width:1100px;height:350px;margin-left:-20px;}
#caidanxinxi_1 #form1 {padding-left:20px}
#caidanxinxi_1 #form1 input{margin-top:10px;}
#caidanxinxi_1 #form1 #button1{width:70px;height:30px;margin-top:20px;margin-right:20px;}
<!---->
#dangqiantejia #iframe{width:1100px;height:350px;margin-left:-20px;}
#dangqiantejia_1 #form1 {padding-left:20px}
#dangqiantejia_1 #form1 input{margin-top:10px;}
#dangqiantejia_1 #form1 #button1{width:70px;height:30px;margin-top:20px;margin-right:20px;}
#dangqiantejia_1 h3{padding-left:20px}
#lei{margin-right:10px}
#caidan span{margin-right:5px;}